a definite diagnosis meaning in Chinese

肯定的诊断

It is difficult to obtain a definite diagnosis because there are neither specific clinical presentations nor noninvasive diagnostic tests
由于缺乏特定的临床表现，又没有非侵袭性的检查可以确定诊断，使此种疾病的诊断更加困难。
As not strict diagnostic diction , when cannot make make a definite diagnosis by onefold and video diagnostic technology , often use liver to take an one word
作为并不严格的诊断用语，当凭单一影像诊断技术不能作出确诊时，经常使用肝占位一词。
Conclusions it is not easy to make a definite diagnosis of aef . so all the patients who have pulsatile aneurysms in the abdomen , acute pain on the lumba or the back and repeated small amounts of upper gastrointestinal haemorrhage , should undergo laparotomy without delay
结论术前确诊腹主动脉肠瘘不容易，凡患者腹部有搏动性动脉瘤，腹部或背部剧烈疼痛，上消化道少量多次出血，应积极手术治疗。